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could not instantiate id generator
net.sf.hibernate.MappingException: could not instantiate id generator at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:82) at net.sf.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:80) at net.sf.hibernate.persister.AbstractEntityPersister.<init>(AbstractEntityPersister.java:631) at net.sf.hibernate.persister.EntityPersister.<init>(EntityPersister.java:715) at net.sf.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:41) at net.sf.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:137) at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:750) at Main.main(Main.java:21)Caused by: net.sf.hibernate.MappingException: Dialect does not support sequences at net.sf.hibernate.dialect.Dialect.getSequenceNextValString(Dialect.java:319) at net.sf.hibernate.id.SequenceGenerator.configure(SequenceGenerator.java:62) at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:78) ... 7 more